APA aipamena

Girifalco, L. (2008). The universal force. Oxford University Press.

Chicago Style aipamena

Girifalco, Louis. The Universal Force. Oxford University Press, 2008.

MLA aipamena

Girifalco, Louis. The Universal Force. Oxford University Press, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.